The main hormone that supports muscle building is testosterone, which is a naturally
occurring hormone in your body that has lots
of important
functions in your body, including muscle growth, minimizing fat
gain, increasing strength and giving you more energy among others.
Lack
of ovulation, whether it
occurs naturally as the result
of aging ovaries, or unnaturally, from extremes
of stress, exercise, diet, and / or use
of synthetic hormones in HRT or birth control pills, will cause estrogen to drop from 40 to 60 percent (enough to stop the menstrual cycle), but progesterone levels plummet much lower, to nearly zero in some women causing a raft
of symptoms from heavy / painful periods, mood swings, PMS and depression to water retention, weight
gain, slowed thyroid
function, and heightened risks for endometriosis, fibroids, fibrocystic breasts as well as breast and uterine cancer.